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| Michael A. Terrell... |
 Posted: Wed Jun 17, 2009 3:03 pm |
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David Nebenzahl wrote:
[quote:6867077636]
On 6/15/2009 12:13 PM Michael A. Terrell spake thus:
The US philosophy is to only trip breaker in a fault condition and
that means extra capacity.
So what is the UK philosophy in this regard?
[/quote:6867077636]
Who knows? One Brit makes one claim, and another calls him a liar.
--
You can't have a sense of humor, if you have no sense! |
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| Eeyore... |
| Posted: Wed Jul 01, 2009 3:38 am |
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William Sommerwerck wrote:
[quote:ed1df2c120]I'd like to thank everyone who took the time to respond to my question. I
was particularly appreciative of those that told me about noise & grounding
problems I've never even heard of.
I'm not quite ready to put everything on one circuit. So I'm going to call
both Parasound and Pioneer to see what insights, if any, they have to offer.
Again, thank you-all for your help.
PS: As for balanced cables being an OTT solution for home installations... I
have five power amps, four of which sit next to the speakers they drive.
Given the distances, and the fact that the amps draw significant current,
and some are on different circuits, it would not be a good idea to use
unbalanced cables.
[/quote:ed1df2c120]
I could tell you a thing or two about that as well. Balanced connections are
VERY advisable especially with the rise in use of SMPSs with their associated
ground leakage currents and the general increase in EMI pollution in the aether.
Graham
--
due to the hugely increased level of spam please make the obvious adjustment to
my email address |
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| AZ Nomad... |
| Posted: Wed Jul 01, 2009 8:28 am |
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On Wed, 1 Jul 2009 07:10:31 -0700, William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
[quote:684ab18f0a]I cannot find a cable isolation transformer suitable for digital-delivery
systems. (Parts Express sells one, but says it isn't suitable for digital,
which at least one buyer confirmed.) I put one together from two baluns, but
haven't tested it yet.
Oddly, Comcast has not such device, free or even for sale. They say that
customers either don't have problems, or don't complain about them.
[/quote:684ab18f0a]
Use an optical cable. |
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| William Sommerwerck... |
| Posted: Wed Jul 01, 2009 8:50 am |
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"AZ Nomad" <aznomad.3 at (no spam) PremoveOBthisOX.COM> wrote in message
news:slrnh4msku.sl9.aznomad.3 at (no spam) ip70-176-155-130.ph.ph.cox.net...
[quote:b6720215a5]On Wed, 1 Jul 2009 07:10:31 -0700, William Sommerwerck
grizzledgeezer at (no spam) comcast.net> wrote:[/quote:b6720215a5]
[quote:b6720215a5]I cannot find a cable isolation transformer suitable for digital-delivery
systems. (Parts Express sells one, but says it isn't suitable for
digital,
which at least one buyer confirmed.) I put one together from two baluns,
but haven't tested it yet.
Oddly, Comcast has not such device, free or even for sale. It says
customers either don't have problems, or don't complain about them.
Use an optical cable.
[/quote:b6720215a5]
Oh? How? The system uses coax.
Does someone make an RF/optical, optical/RF converter? |
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| AZ Nomad... |
| Posted: Wed Jul 01, 2009 9:10 am |
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On Wed, 1 Jul 2009 07:50:11 -0700, William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
[quote:38abe23c0e]"AZ Nomad" <aznomad.3 at (no spam) PremoveOBthisOX.COM> wrote in message
news:slrnh4msku.sl9.aznomad.3 at (no spam) ip70-176-155-130.ph.ph.cox.net...
On Wed, 1 Jul 2009 07:10:31 -0700, William Sommerwerck
grizzledgeezer at (no spam) comcast.net> wrote:
I cannot find a cable isolation transformer suitable for digital-delivery
systems. (Parts Express sells one, but says it isn't suitable for
digital,
which at least one buyer confirmed.) I put one together from two baluns,
but haven't tested it yet.
Oddly, Comcast has not such device, free or even for sale. It says
customers either don't have problems, or don't complain about them.
Use an optical cable.
Oh? How? The system uses coax.
Does someone make an RF/optical, optical/RF converter?
[/quote:38abe23c0e]
Yes. google is your friend. |
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| William Sommerwerck... |
| Posted: Wed Jul 01, 2009 10:29 am |
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[quote:5dda8042d9]I did ask the sous-manager of the Bellevue Magnolia, and was told that
Magnolia did not require balanced cabling in home-theater systems -- it
was the customer's choice. He didn't say how often they had problems
with ground loops, buzzing, etc. The implication was that such problems
were sufficiently rare that there was no need for Magnolia to insist on
balanced lines.
Er, either they're fitted with balanced connectors or they're not. To
modify an unbalanced unit isn't a trivial matter. Involves either using
expensive transformers at either end of the line or incorporating new
electronics. You don't just buy a new cable. 
[/quote:5dda8042d9]
Sure you do. Almost all "good" home-cinema (as well as middle-to-high-end
audio) equipment has both balanced and unbalanced ins and outs. (My
Parasound controller does. I use the unbalanced outputs to feed a Pioneer
quadrascope.) |
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| Dave Plowman (News)... |
| Posted: Wed Jul 01, 2009 10:39 am |
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In article <h2g34j$527$1 at (no spam) news.eternal-september.org>,
William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
[quote:02bb642847]Er, either they're fitted with balanced connectors or they're not. To
modify an unbalanced unit isn't a trivial matter. Involves either using
expensive transformers at either end of the line or incorporating new
electronics. You don't just buy a new cable. ;-)
Sure you do. Almost all "good" home-cinema (as well as middle-to-high-end
audio) equipment has both balanced and unbalanced ins and outs. (My
Parasound controller does. I use the unbalanced outputs to feed a Pioneer
quadrascope.)
[/quote:02bb642847]
Total overkill. Balanced audio is only needed for very long runs or in
very hostile environments - not found in the home. Are your aerial and
video connections balanced?
--
*Income tax service - We‘ve got what it takes to take what you've got.
Dave Plowman dave at (no spam) davenoise.co.uk London SW
To e-mail, change noise into sound. |
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| William Sommerwerck... |
| Posted: Wed Jul 01, 2009 11:23 am |
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I've Googled, and as far as I can tell, there is no commercially available
device that converts cable-TV RF signals to optical, then back again. What
would be the point of such a device, when an isolation transformer would be
much, much cheaper?
On the other hand, there are hundreds of products that convert TOSlink to
coax and back again. |
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| William Sommerwerck... |
| Posted: Thu Jul 02, 2009 5:55 am |
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"Dave Plowman (News)" <dave at (no spam) davenoise.co.uk> wrote in message
news:50741e26d5dave at (no spam) davenoise.co.uk...
[quote:94f721740d]In article <h2g34j$527$1 at (no spam) news.eternal-september.org>,
William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
Er, either they're fitted with balanced connectors or they're not. To
modify an unbalanced unit isn't a trivial matter. Involves either using
expensive transformers at either end of the line or incorporating new
electronics. You don't just buy a new cable. ;-)
Sure you do. Almost all "good" home-cinema (as well as middle-to-
high-end audio) equipment has both balanced and unbalanced ins
and outs. (My Parasound controller does. I use the unbalanced
outputs to feed a Pioneer quadrascope.)
Total overkill. Balanced audio is only needed for very long runs or in
very hostile environments -- not found in the home. Are your aerial
and video connections balanced?
[/quote:94f721740d]
We've been through this before, and I'm not going to keep arguing. Most
equipment these days has balanced connections. It's ridiculous not to spend
a little more for balanced cables. |
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| William Sommerwerck... |
| Posted: Thu Jul 02, 2009 5:57 am |
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| Wow. Thanks for all that useful stuff. Really. |
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| Dave Plowman (News)... |
| Posted: Thu Jul 02, 2009 6:48 am |
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In article <h2i7dl$cqc$1 at (no spam) news.eternal-september.org>,
William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
[quote:b9015d1c7e]Total overkill. Balanced audio is only needed for very long runs or in
very hostile environments -- not found in the home. Are your aerial
and video connections balanced?
We've been through this before, and I'm not going to keep arguing. Most
equipment these days has balanced connections.
[/quote:b9015d1c7e]
Domestic? It doesn't. It adds cost for no reason.
[quote:b9015d1c7e]It's ridiculous not to spend a little more for balanced cables.
[/quote:b9015d1c7e]
All a cable needs to do is connect things together. Properly. And you
simply don't need to use balanced in a domestic environment.
--
*Who is this General Failure chap anyway - and why is he reading my HD? *
Dave Plowman dave at (no spam) davenoise.co.uk London SW
To e-mail, change noise into sound. |
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| cjt... |
| Posted: Thu Jul 02, 2009 8:02 pm |
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Dave Plowman (News) wrote:
[quote:d121e1cc80]In article <h2i7dl$cqc$1 at (no spam) news.eternal-september.org>,
William Sommerwerck <grizzledgeezer at (no spam) comcast.net> wrote:
Total overkill. Balanced audio is only needed for very long runs or in
very hostile environments -- not found in the home. Are your aerial
and video connections balanced?
We've been through this before, and I'm not going to keep arguing. Most
equipment these days has balanced connections.
Domestic? It doesn't. It adds cost for no reason.
It's ridiculous not to spend a little more for balanced cables.
All a cable needs to do is connect things together. Properly. And you
simply don't need to use balanced in a domestic environment.
It doesn't hurt. The incremental cost is small.[/quote:d121e1cc80] |
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